The invention relates to a connecting device and a steering gear box, the connecting device is connected between a steering column of the steering gear box and a vehicle steering pull rod and is used for outputting steering power, the connecting device comprises a first transmission part and a second transmission part, the first transmission part is provided with a plurality of first arc-shaped teeth arranged in the circumferential direction, and the first transmission part is connected with the steering column to rotate synchronously; the second transmission part is connected with the steering pull rod and is provided with a plurality of second arc-shaped teeth in the linear direction; when the first transmission part rotates, the first arc-shaped teeth are meshed with the second arc-shaped teeth to drive the second transmission part to move so as to drive the steering pull rod to move. The first transmission part and the second transmission part are meshed and contacted through the arc-shaped teeth, the contact area of the first transmission part and the second transmission part is close to the middle section of the tooth width, the meshing performance is good, the number of meshed and contacted tooth surfaces is large, and the contact ratio is large, so that during operation, transmission is stable, the contact gap is small, meanwhile, the contact impact is small, the contact stress is small, the bearing capacity is large, and the purposes of miniaturization and light weight of the steering gear box are achieved.

    本发明涉及一种连接装置及方向机,连接装置连接在方向机转向管柱与车辆转向拉杆之间,用于输出转向动力,连接装置包括:第一传动部件,具有在周向上配置的多个第一弧形齿,第一传动部件联接于转向管柱以同步转动;及第二传动部件,联接于转向拉杆并具有线性方向上的多个第二弧形齿;第一传动部件转动时通过第一弧形齿啮合于第二弧形齿来带动第二传动部件移动,以驱使转向拉杆活动。第一传动部件和第二传动部件之间通过弧型齿啮合接触,它们的接触区域在齿宽中截面附近,啮合性能好,啮合接触的齿面多,重合度大,因此在运行的时候传动平稳,接触间隙小,同时接触冲击小,接触应力小,承载力大,达到有利于方向机小型化和轻量化的目的。


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    Title :

    Connecting device and steering gear box


    Additional title:

    一种连接装置及方向机


    Contributors:
    CHEN YUN (author) / HONG HANCHI (author) / DENG LICHENG (author) / YE YANGQI (author)

    Publication date :

    2021-06-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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